drupflare/worker - v1.0.4
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    Variable DEFAULT_REPLICA_LAG_MSConst

    DEFAULT_REPLICA_LAG_MS: 30000 = 30_000

    How long a SERVING lane may go without pulling the log; the bound on staleness.

    The fence refuses only a caller that states a freshness requirement and a visitor states none; without this the lane re-arms at KEEP_WARM_MS (240,000 against 30,000). Each round costs two DO requests against the primary.